in the new forum HOW DO I DELETE some private messages

sure aint obvious!
ErrorsThe following errors occurred with your submission

  • You have reached your stored private message quota and cannot send any further messages until space has been created.

does this apply to sent AND received?

In your Inbox or Sent Items list, select the messages you want to delete with the tickbox on the right, press the ‘Selected Messages’ button and select Delete and Proceed